The day the earth stood still (1951)
Director: Robert Wise
Actors: Michael Rennie, Patricia Neal, Hugh Marlowe An alien lands and tells the people of Earth that they must live peacefully or be destroyed as a danger to other planets.

The day the earth stood still (2008)
Director: Scott DerricksonActors: Keanu Reeves, Jennifer Connely, Kathy Bates A remake of the 1951 classic sci-fi film about an alien visitor and his giant robot counterpart who visit Earth.

Alien vs predator (2004)
Director: Paul W.S. AndersonActors: Sanaa Lathan, Lance Henriksen, Raoul BovaDuring an archaeological expedition on Bouvetøya Island in Antarctica, a team of archaeologists and other scientists find themselves caught up in a battle between the two legends. Soon, the team realize that only one species can win.

Close encounters of the third kind (1977)
Director: Steven Spielberg
Actors: Richard Dreyfuss, François Truffaut, Teri GarrAfter an encounter with UFOs, a line worker feels undeniably drawn to an isolated area in the wilderness where something spectacular is about to happen.

E.T.: The Extraterrestrial (1982)
Director: Steven Spielberg
Actors: Henry Thomas, Drew Barrymore, Peter CoyoteA meek and alienated little boy finds a stranded extraterrestrial. He has to find the courage to defy the authorities to help the alien return to its home planet.

The fourth kind (2009)
Director: Olatunde Osunsanmi
Actors: Mila Jovovich, Elias Koteas, Wil PattonA thriller involving an ongoing unsolved mystery in Alaska, where one town has seen an extraordinary number of unexplained disappearances during the past 40 years and there are accusations of a federal cover up.

K-PAX (2009)
Director: Iain Softley
Actors: Kevin Spacey, Jeff Bridges, Mary McCormackProt is a patient at a mental hospital who claims to be from a far away Planet. His psychiatrist tries to help him, only to begin to doubt his own explanations.

MIB – Men in black (1997)
Director: Barry Sonnenfeld
Actors: Wil Smith, Tommy Lee Jones, Linda FiorentinoTwo men who keep an eye on aliens in New York City must try to save the world after the aliens threaten to blow it up.

Fire in the sky (1993)
Director: Robert Lieberman
Actors: D.B. Sweeney, Robert Patrick, Craig ShefferA group of men who were clearing bush for the government arrive back in town, claiming that their friend was abducted by aliens. Nobody believes them, and despite a lack of motive and no evidence of foul play, their friends’ disappearance is treated as murder.